20 the navigation data display, 21 echo stretch (magnifying long range echoes) – Furuno FMD-811 User Manual

Page 24

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14

1.20 The Navigation Data
Display

Navigation data can be displayed at the
screen bottom if the unit receives naviga-
tion input in NMEA 0183 format. Naviga-
tion data include

• position in latitude and longitude or Lo-

ran-C time differences (TDs)

• bearing and range to a waypoint selected

on the navigator

• cross track error (XTE—the amount in

nautical miles and the direction the ves-
sel if off course)

• depth
• speed.

If the navigation data include the destina-
tion data, waypoint position is denoted on
the screen by a dashed ring.

1.5

NM

0.5

HDG 326.8°

66° 04. 00N

166° 04. 00E

VRM EBL + CURSOR

0.675

NM

240.1°

R

0.646

NM

308.7°

R

DEPTH XTE SPD

350.0m 0.05NML 30.0KT

WAYPOINT POSI L/L

12.0

NM

45.0°

M

AUTO

Figure 1-17 Sample nav data display

Setting up the nav data display

1) Press the [MENU] key.

2) Select Nav Data and press the [ENT] key.

NAV DATA MENU

Select item and option
by

▲▼

keys.

1. Navigator
2. Nav Data Disp
3. Pos Disp Mode
4. Depth Unit
5. Temp Unit
6. STBY Display

. . . . . . . . . . . . . . . . .

Press HM-OFF to temporarily
hide menu.

<Press MENU for main menu.>

ALL GPS LC
OFF ON
L/L TD
M FA FT
°C °F
NORM NAV

Figure 1-18 Nav data menu

3) Select Navigator; GPS, Loran C or ALL

(Select all if several navigators are con-
nected to the unit. In this case, position
data is selected in order of GPS, Loran C
and other.)

4) Select Nav Data Disp to OFF or ON.

5) Select Pos Disp Mode to L/L (latitude and

longitude or TD (Loran C).

6) Select unit of depth measurement to

meters, fathoms, or feet.

7) Select unit of measurement for water tem-

perature to Centigrade or Fahrenheit.

8) Select whether to display nav data or "ST-

BY". "NORM" for stand-by; NAV for
navigation data.

9) Press the [ENT] key followed by the

[MENU] key.

1.21 Echo Stretch (magnifying
long range echoes)

Normally, the reflected echoes from long
range targets appear on the display as weaker
and smaller blips even though they are com-
pensated by the internal circuitry. To stretch
long range echoes, in the range direction,
turn on the echo stretch function.

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